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Visible-Light-Mediated Synthesis of Unsymmetrical Diaryl Sulfides via Oxidative Coupling of Arylhydrazine with Thiol

Golam Kibriya, Susmita Mondal, Alakananda Hajra*

*Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India, Email:

G. Kibriya, S. Mondal, A. Hajra, Org. Lett., 2018, 20, 7740-7743.

DOI: 10.1021/acs.orglett.8b03549

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A metal-free visible-light-promoted oxidative coupling between thiols and arylhydrazines provides diaryl sulfides in good yields using a catalytic amount of rose bengal as photocatalyst under aerobic conditions at room temperature. This methodology is also applicable to benzo[d]thiazole-2-thiols, benzo[d]oxazole-2-thiol, 1H-benzo[d]imidazole-2-thiols, and 1H-imidazole-2-thiol.

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Key Words

diaryl sulfides, photochemistry

ID: J54-Y2018